Truck



FIG. 1 is a front elevational view for a truck, showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a view thereof from the right of FIG. 2; and,

FIG. 5 is a view thereof from the left of FIG. 2. 

The ornamental design for a truck, as shown. 